1. Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, CA;
2. Department of Dermatology, Loma Linda University Health, Loma Linda, CA;
3. Department of Dermatology, University of California Irvine, Irvine, CA; and
4. Department of Pathology and Human Anatomy, Loma Linda University Health, Loma Linda, CA.